Tomcat报错:The origin server did not find a current representation for the target resource or is not..

在写项目的时候突然出现了The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.的报错，网页突然就打不开了，然后上网搜了搜，按照https://blog.youkuaiyun.com/dbc_121/article/details/79204340这个博客给的提示尝试之后都没能解决错误。

于是把新写的东西注释掉，又可以跑了。仔细看了看发现是mapper.xml文件中把resultMap写成了resultType…每次只要映射有问题网页就打不开。